GB/T 38898-2020 "Non-destructive testing — Ultrasonic testing method for coating adhesion strength": This standard specifies a non-destructive testing method for coating adhesion strength based on ultrasonic principles, covering personnel qualifications, equipment requirements, testing procedures, and report preparation. It is applicable to metal/non-metal substrates with good sound transmission properties and coatings such as adhesive-bonded or sintered types, with a coating thickness range of 0.1–5 mm. The testing data are analyzed using the reflection coefficient method or transmission coefficient method to determine the coating adhesion status, providing a scientific basis for coating quality assessment.
This summary is not the original standard text and is for reference only. For accurate information, please obtain it through official channels.
| Status | Active | ||
|---|---|---|---|
| CCS | J04 | ICS | 19.100 |
| Release Date | 2020-06-02 00:00:00 | Implementation Date | 2021-01-01 00:00:00 |